Fountain-pen.



PATENTED JUNE 23, 1903.

H. F. BUTTNER.

FOUNTAIN PEN.

APPLIUATION FILED ran. a. 1903.

no MODEL.

m: NORRIS PETERS co, 9HOTO-L|1HO.. WASHINGTON. 0.1:,

l 45 y r ance with my invention is provided with a UNITED STATES Patented June 23, 1903.

PATENT OFFICE,

HENRY F. BUTTNER, OF IDAHO FALLS, IDAHO.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No, 731,853, dated June 23, 1903. Application filed February 5, 1903. Serial No. 142,049. (No model.)

To alt whom it may concern.-

1 Be it known that-I, HENRY F. BUTTNER, a citizen of the United States, residing at Idaho Falls, in the county of Bingham and State of Idaho, have invented a new and useful Fountain-Pen, of which the following is a specification.

My invention relates to fountain-pens,'and

has for its objects to produce a device of this curs characterwhich is simple of construction, efiicient in operation, and one in which the operation of filling the barrel or reservoir of the pen with ink is performed by immersing the end of the pen-section in ink and drawing the ink into the reservoir by means of a either a piston or a bulb, the pen in practice being equipped with both and so constructed as to adapt it for use with either.

A further object of the invention is to provide for thepositive adjustment of the packing withwhich the piston-head is equipped, in order to insure the same. fitting the walls of the reservoir snugly at all times, and thus preserving a tight fit of the piston-head inthefreservoir to render the operation of the parts efficient.

To these ends the invention comprises the details of construction and combination of parts more fully'hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a longitudinal sectional view through a pen constructed in accordance with myinvention.

. a Fig. 2'is a similar view showing thebulb applied to the end of the pen-barrel. Fig. 3 is .a'detailed view, on an enlarged scale, of the piston. Fig.4 is a detailed section illustrating the cap applied to the upper end of the pen-barrel. I Referring to the drawings, 1 indicates th body of the pen, which is hollow throughout its length to form the usual internal ink reservoir or barrel 2, which is screw-threaded internally at its lower end and has screwed thereinto a pen-section 3, whichin accordhole or perforation 4, extending longitudinally therethrough from end to end to admit a The upper end of the barrel is internally screw-threaded and has tapped thereinto a short reduced section 5, which projects be yond the end of the barrel a suitable distance the piston-rod, as will be readily understood.

The piston-rod is provided at its outer end with a suitable knob and has its inner end screw-threaded for engagement with an internally-threaded portion of a member 11 of the piston-head 9. The member 11 is provided with a reduced threaded portion 12, which carries the hollow packing member 13, which latter bears at one end against a shouldered portion 14 of the member and at its opposite end against an annular disk 15, threaded onto the reduced portion 12 and adapted for adjustment thereon longitudinally. In order to adjust the packing to cause the same to fit snugly against the Wall of the reservoir 2, it is simply necessary to screw the disk 15 upward toward the shouldered portion 14 of the member, which action compresses the hollow packing member longitudinally and causes the same to swell transversely, as will be readily understood, thus insuring a tight fit at all times and the efficiency of the operation of the device.

16 indicates an annular groove formed transversely around the outer wall of the body portion of the pen and near the upper end thereof. This groove is adapted to re ceive a rubber bulb 17, as illustrated in Fig.

2,an d which may be employed for drawing the ink into the pen-reservoir.

18 indicates the usual cap adapted to be applied over the pen-section to protect the pen when not in use in the usual manner.

In operation the pen-reservoir may be filled by immersing the end of the pen-section in ink and drawing the plunger outward todra-W the ink into the barrel or reservoir, as will be readily understood. The bulb 18 may be operated for the same purpose, and it is the intention, in practice, to equip the pen with Y the body portion having an external groove formed thereon near its upper end, of a reduced section seated in the end of the barrel and provided with a longitudinal opening, and a pen-section seated in the other end of the barrel and provided with an ink-opening.

2. In a fountain-pen, the combination with the body portion having an internal reservoir formed therein, of a piston-head mounted in the reservoir and having a member provided With a reduced threaded portion and with a shouldered portion, a packing member mounted on the reduced portion, and bearing against the shouldered portion, and a disk adj ustably mounted on the reduced portion and adapted for movement to compress the packing. Y

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

HENRY F. BUTTNER.

Witnesses:

FRANK K. Hrr'r, D. H. GLYNE. 

